Posted on Jan 24, 2021
Pfizer will now ship fewer COVID-19 vaccine vials to the US after scientists discovered extra...
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Posted 4 y ago
Responses: 3
A couple of issues to include 1. Not always easy to get the last dose out and 2. need a special syringe to do that.
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Maj Robert Thornton
As for the Moderna, one, if very careful and skillfully, can get 11 0.5ml doses out of a 10 dose vial. Most companies put a touch more in the vials. We were getting 11 doses out on Thursday at the Health Dept. Mass event, with nurse and EMT's drawing the meds up. We averaged only 10 dose per vial with physicians drawing the meds up.
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Sounds like a quality control and machine calibration issue (which does fall under QC). Even automated systems should have caught such discrepancies.
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